Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal

A technology of emulsified asphalt and special-shaped section, which is applied to the coagulation pavement, roads, roads and other directions paved on site to achieve the effects of improving mechanical properties and low-temperature crack resistance, reducing embrittlement point temperature and reducing reflection cracks.

Inactive Publication Date: 2007-05-16
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is to overcome the above-mentioned shortcomings of the traditional slurry seal, and to provide an improved slurry seal with good toughness, less prone to cracks, local peeling and damage

Method used

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  • Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Emulsified asphalt: BC-1 type, which meets the technical requirements of emulsified asphalt for roads in "Technical Specifications for Construction of Highway Asphalt Pavement". The amount of asphalt is 10%.

[0024] Fiber: Not added.

[0025] Filler: 425# ordinary Portland cement is used, and the blending amount is 3%. All performances meet the requirements of "Technical Specifications for Highway Asphalt Pavement Construction" (JTGF40-2004).

[0026] Primary aggregate: sand. All properties meet the requirements of "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40-2004).

[0027] The mineral material gradation is as follows:

[0028] Sieve hole(mm)

Embodiment 2

[0030] Emulsified asphalt: BC-1 type, which meets the technical requirements of emulsified asphalt for roads in "Technical Specifications for Construction of Highway Asphalt Pavement". The amount of asphalt is 10%.

[0031] Fiber: it is the porous polyester fiber with quincunx cross-section shown in the accompanying drawing, and the dosage is 0.10% of the total mass of the mixture.

[0032] Filler: 425# ordinary Portland cement is used, and the blending amount is 3%. All performances meet the requirements of "Technical Specifications for Highway Asphalt Pavement Construction" (JTGF40-2004).

[0033] Primary aggregate: sand. All properties meet the requirements of "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40-2004).

[0034] The mineral material gradation is as follows:

[0035] Sieve hole(mm)

Embodiment 3

[0037] Emulsified asphalt: BC-1 type, which meets the technical requirements of emulsified asphalt for roads in "Technical Specifications for Construction of Highway Asphalt Pavement", and the dosage is 10%.

[0038] Fiber: it is the porous polyester fiber with quincunx cross-section shown in the accompanying drawing, and the dosage is 0.15% of the total mass of the mixture.

[0039] Filler: 425# ordinary Portland cement is used, and the blending amount is 3%. All performances meet the requirements of "Technical Specifications for Highway Asphalt Pavement Construction" (JTGF40-2004).

[0040] Primary aggregate: sand. All properties meet the requirements of "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40-2004).

[0041] The mineral material gradation is as follows:

[0042] Sieve hole(mm)

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Abstract

The invention discloses a sealer which prepared by special-shaped section hollow polymer fiber reinforced emulsified asphalt slurry and it comprises of regular emulsified asphalt slurry sealer and special-shaped section single hole or porous polymer. Among them, the content of special-shaped section single whole or porous polymer is 0.1-0.3% of the total weight of bitumen slurries mixture. The polymer fibers are polyester fibers, polyacrylic fiber or polyamide fiber, or mixed fiber comprised of said fibers in causal proportion. The 'special-shaped section' of polymer fibers is the lateral section of fibers which could be regular or irregular geometric shapes, for example, cross-shaped, trilobular, well-shaped, star-shaped, quincunx etc. The 'hollow'' means the fiber is not solid, but with one or more holes structure along the axis. The special-shaped section hollow polymer fiber reinforced emulsified asphalt slurry sealer has many advantages, such as fine toughness, and it does not occur cracks, local decortication and breakage easily. It can be applied to maintenance and conservation of various levels of road widely, especially the high-grade highways, ordinary roads which asphalt pavement is in larger deformation, large communications, heavy communications and other engineering areas.

Description

technical field [0001] The invention relates to an emulsified asphalt slurry seal layer, in particular to an emulsified asphalt slurry seal layer mixed with polymer fibers. Background technique [0002] Highway transportation is an essential infrastructure for the rapid development of contemporary economy and society, and its performance and quality often have a close impact on social life. Traffic accidents and frequent repairs caused by poor road performance often cause traffic jams and hinder economic and social development. How to delay the aging of asphalt pavement, prevent pavement cracks, and prolong the service life is an important issue faced by the road maintenance department. Therefore, it is necessary to continuously improve the performance of road maintenance materials and promote the use of new materials. [0003] Emulsified asphalt slurry seal layer is a road maintenance technology developed rapidly in recent years. It uses fine-grained graded stone chips or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35
Inventor 姚立阳汤惠工何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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